#!/usr/bin/python

# Copyright (c) 2015, Tim Hoiberg <tim.hoiberg@gmail.com>
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later

from __future__ import annotations


DOCUMENTATION = r"""
module: bundler
short_description: Manage Ruby Gem dependencies with Bundler
description:
  - Manage installation and Gem version dependencies for Ruby using the Bundler gem.
extends_documentation_fragment:
  - community.general.attributes
attributes:
  check_mode:
    support: full
  diff_mode:
    support: none
options:
  executable:
    type: str
    description:
      - The path to the bundler executable.
  state:
    type: str
    description:
      - The desired state of the Gem bundle. V(latest) updates gems to the most recent, acceptable version.
    choices: [present, latest]
    default: present
  chdir:
    type: path
    description:
      - The directory to execute the bundler commands from. This directory needs to contain a valid Gemfile or .bundle/ directory.
      - If not specified, it defaults to the temporary working directory.
  exclude_groups:
    type: list
    elements: str
    description:
      - A list of Gemfile groups to exclude during operations. This only applies when O(state=present). Bundler considers
        this a 'remembered' property for the Gemfile and automatically excludes groups in future operations even if O(exclude_groups)
        is not set.
  clean:
    description:
      - Only applies if O(state=present). If set removes any gems on the target host that are not in the gemfile.
    type: bool
    default: false
  gemfile:
    type: path
    description:
      - Only applies if O(state=present). The path to the gemfile to use to install gems.
      - If not specified it defaults to the Gemfile in current directory.
  local:
    description:
      - If set only installs gems from the cache on the target host.
    type: bool
    default: false
  deployment_mode:
    description:
      - Only applies if O(state=present). If set it installs gems in C(./vendor/bundle) instead of the default location. Requires
        a C(Gemfile.lock) file to have been created prior.
    type: bool
    default: false
  user_install:
    description:
      - Only applies if O(state=present). Installs gems in the local user's cache or for all users.
    type: bool
    default: true
  gem_path:
    type: path
    description:
      - Only applies if O(state=present). Specifies the directory to install the gems into. If O(chdir) is set then this path
        is relative to O(chdir).
      - If not specified the default RubyGems gem paths are used.
  binstub_directory:
    type: path
    description:
      - Only applies if O(state=present). Specifies the directory to install any gem bins files to. When executed the bin
        files run within the context of the Gemfile and fail if any required gem dependencies are not installed. If O(chdir)
        is set then this path is relative to O(chdir).
  extra_args:
    type: str
    description:
      - A space separated string of additional commands that can be applied to the Bundler command. Refer to the Bundler documentation
        for more information.
author: "Tim Hoiberg (@thoiberg)"
"""

EXAMPLES = r"""
- name: Install gems from a Gemfile in the current directory
  community.general.bundler:
    state: present
    executable: ~/.rvm/gems/2.1.5/bin/bundle

- name: Exclude the production group from installing
  community.general.bundler:
    state: present
    exclude_groups: production

- name: Install gems into ./vendor/bundle
  community.general.bundler:
    state: present
    deployment_mode: true

- name: Install gems using a Gemfile in another directory
  community.general.bundler:
    state: present
    gemfile: ../rails_project/Gemfile

- name: Update Gemfile in another directory
  community.general.bundler:
    state: latest
    chdir: ~/rails_project
"""

from ansible.module_utils.basic import AnsibleModule


def get_bundler_executable(module):
    if module.params.get("executable"):
        result = module.params.get("executable").split(" ")
    else:
        result = [module.get_bin_path("bundle", True)]
    return result


def main():
    module = AnsibleModule(
        argument_spec=dict(
            executable=dict(),
            state=dict(default="present", choices=["present", "latest"]),
            chdir=dict(type="path"),
            exclude_groups=dict(type="list", elements="str"),
            clean=dict(default=False, type="bool"),
            gemfile=dict(type="path"),
            local=dict(default=False, type="bool"),
            deployment_mode=dict(default=False, type="bool"),
            user_install=dict(default=True, type="bool"),
            gem_path=dict(type="path"),
            binstub_directory=dict(type="path"),
            extra_args=dict(),
        ),
        supports_check_mode=True,
    )

    state = module.params.get("state")
    chdir = module.params.get("chdir")
    exclude_groups = module.params.get("exclude_groups")
    clean = module.params.get("clean")
    gemfile = module.params.get("gemfile")
    local = module.params.get("local")
    deployment_mode = module.params.get("deployment_mode")
    user_install = module.params.get("user_install")
    gem_path = module.params.get("gem_path")
    binstub_directory = module.params.get("binstub_directory")
    extra_args = module.params.get("extra_args")

    cmd = get_bundler_executable(module)

    if module.check_mode:
        cmd.append("check")
        rc, out, err = module.run_command(cmd, cwd=chdir, check_rc=False)

        module.exit_json(changed=rc != 0, state=state, stdout=out, stderr=err)

    if state == "present":
        cmd.append("install")
        if exclude_groups:
            cmd.extend(["--without", ":".join(exclude_groups)])
        if clean:
            cmd.append("--clean")
        if gemfile:
            cmd.extend(["--gemfile", gemfile])
        if local:
            cmd.append("--local")
        if deployment_mode:
            cmd.append("--deployment")
        if not user_install:
            cmd.append("--system")
        if gem_path:
            cmd.extend(["--path", gem_path])
        if binstub_directory:
            cmd.extend(["--binstubs", binstub_directory])
    else:
        cmd.append("update")
        if local:
            cmd.append("--local")

    if extra_args:
        cmd.extend(extra_args.split(" "))

    rc, out, err = module.run_command(cmd, cwd=chdir, check_rc=True)

    module.exit_json(changed="Installing" in out, state=state, stdout=out, stderr=err)


if __name__ == "__main__":
    main()
